dickerson



(No Model.)

f 2 Sheets-Sheet 1. ,E. N. DIGKERSON.

AGETYLENE GENERATOR.

Patented May 10,1898.

WITNESSES: INVENTOR NORRIS FEYERS m. movaumm, WASH (No Model.) z'sneets-sneem; S

- 13,11.DIOK ERSON.

ACETYLENE GENERATOR.

No. 603,678. Patented-May10,1898.

' WITNESSES:

THE NORRIS PETERS 00.. PHoTuumo" wnsmnmou, n. c.

' UNITED STATES PATENT OFFICE.

EDWARD N. moKER'soN, or NEw'Yo K, N. Y.

ACETYLEN E-'G EN ERATO R.

SPECIFICATION forming part of Letters Patent No. 603,678, dated May 10, 1898. A uas'on filed August 12,1297. Serial No. 647,958. on model.)

T0 at whom it may concern.-

Beitknown thatI, EDWARD N. DICKERSON, of No. 253 Broadway, in the city of New York, county and State of New York, have invented a new and useful Improvement in Acetylene- Generators Especially Applicable to Portable Lamps, of which the following is a full, true, and exact description, reference being had to the accompanying drawings.

My invention relates to that class of lamps in which a water-chamber is located above a calcium-carbid holder and the water is allowed to pass slowly, generally drop by drop, into the calcium-carbid chamber.

My invention relates especially to a new and improved form of cartridge in which the calcium carbid is held and which can be ejected at the end of the generation and a new one replaced.

My invention will be readily understood from the accompanying drawings, in which Figure 1 represents an elevation, partly broken away, of my lamp; Fig. 2, a crosssection through the generating portions of the lamp; Fig. 3, a cross-section through Fig. 2 on the line 00 as; Fig. 4,- a vertical section through the carbid cartridge, Fig. 2, showing .a slight modification; and Fig. 5, a similar view to that of the carbid cartridge, Fig.2, showing the water-distributing tube in posi tion.

1 represents the body of my lamp; 2, the water receptacle; 3, the burner, which, as shown, is connected with the generatingchamber by the condensing-tube 4, located in the water-chamber. These structures may be of any desired form, and the condensingtube may be omitted, if desired. The water is supplied to the water-chamber through the cap 5.

6 represents my improved cartridge, which is of flexible material,preferably of the general arrangement used in tubes for holding paint and similar matters. are made of thin metal and are provided with screw-caps. I propose to use a similar cartridge'of suitable size for the requisite amount of carbid I also propose to close the upper part of these tubes permanently by a film or septum 7. This may be arranged, as in Fig. 5, at the end of the screw-thread, or may be part of the lower metallic body, as shown in These cartridges as shown in Fig. 5.

Fig. 4. In Fig. 4 an additional screw-cap 8 is shown; but this is not necessary. This cartridge is filled in the usual Way and is then closed at the bottom, as at 9. It is preferably provided with folds 10, allowing of the expansion, so as to accommodate itself to the increased volume of the carbid when the same is converted into lime. The same result can be accomplished less advantageously by only partially filling the tube with calcium carbid and allowing it to expand upward as it is converted.

The lower part of the water-receptacle 2 is provided with a suitable valve-support 11, closed by a needle-valve 12, which may be operated by a handle 13, extending to the outside of the lamp-casing. As shown, this handle 13 is arranged with a spring and jaw to clamp onto the flattened end of the valvestem 12.

The drip-tube 14 is fed-from the valve 12, water passing down through the opening 15 at the bottom of the water-chamber. The upper part of this metallic portion may also be connected with the condensing pipe-conveying tube 4. A suitable screw-socket 16 surrounds the tube 11 and is supported thereon by the'rentering lip or collar 17, resting upon the collar on the tube 11. The lower end of this revolving piece is screw-threaded, as at 18, to fit the screw-thread on the upper end of the cartridge. Any suitable packing may be employed to make a tight joint between the cartridge-tube and the lamp.

In'operation the film or septum 7 is broken, as shown in Fig. 2, by a suitable punch. Then the tube-cartridge is screwed in position by revolving the screw-collar 14, and on opening the valve 12, allowing the drip, the operation commences at once. In casea considerable quantity of carbid is to be treated I prefer to use a distributing-tube 19, as shown ICO into tubular form and swung into position,

Then the carbid being filled around it and the lower opening sealed the cartridge is permanent. As the carbid is converted into lime the tube itself will somewhat collapse, and where the external flexus or bend is employed, as in Fig. 3, the cartridge will also open to correspond to the increased volume of the lime. 1

What I claim as my invention, and desire to secure by Letters Patent, is

1. The calcium-carbid cartridge, consisting of a laterally-extensible air-tight vessel provided with a pierceable air-tight film covering its opening, substantially as described.

2. The combination in an acetylenegas generator, of a pierceable air-tight cartridge, having a screw-neck provided With a pierceable film, a water-chamber connected therewith, and a screw connection between the Waterchamber and said neck for making a gas connection, substantially as described.

3. The combination in an acetylene-gas generator of the Water-chamber, the laterally-cicname to this specification in the presence of' 3 two subscribing Witnesses.

E. N. DICKERSON.

Witnesses:

H. OoNTAUF, ANTHONY GREF. 

